
who decides btc,eth,doge, etc......

price
who is control
the law of the market that price movements occur because there are offers and sales, as well as Bitcoin transactions that occur every second as well as prices that will change. for decentralization, of course, the influence of supply in the market becomes price determination, while meme coins are very easy to manipulate, as happened to Doge coins that were pumped only by an elon musk.